280030255 has 16 divisors (see below), whose sum is σ = 339450048. Its totient is φ = 221760000.

The previous prime is 280030249. The next prime is 280030259. The reversal of 280030255 is 552030082.

It is not a de Polignac number, because 280030255 - 2¹¹ = 280028207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280030259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317415 + ... + 318295.

It is an arithmetic number, because the mean of its divisors is an integer number (21215628).

Almost surely, 2^280030255 is an apocalyptic number.

280030255 is a deficient number, since it is larger than the sum of its proper divisors (59419793).

280030255 is a wasteful number, since it uses less digits than its factorization.

280030255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 280030255 is about 16734.1045473010. The cubic root of 280030255 is about 654.2368245489.

The spelling of 280030255 in words is "two hundred eighty million, thirty thousand, two hundred fifty-five".